|
1.
14 + 4 =
2
18
|
2.
4 – 2 =
2
1
|
3.
4 + 13 =
2
17
|
4.
4 – 0 =
4
1
|
|
5.
17 – 10 =
7
1
|
6.
16 – 2 =
1
14
|
7.
12 – 5 =
7
1
|
8.
13 – 2 =
11
1
|
|
9.
20 + 0 =
20
2
|
10.
10 + 3 =
13
1
|
11.
9 + 0 =
1
9
|
12.
20 + 0 =
20
2
|
|
13.
16 + 0 =
16
2
|
14.
13 – 9 =
4
1
|
15.
15 + 0 =
15
1
|
16.
16 + 4 =
20
2
|
|
17.
11 – 1 =
1
10
|
18.
18 – 9 =
9
1
|
19.
16 – 5 =
1
11
|
20.
4 – 2 =
1
2
|
|
1.
14 + 4 =
2
18
|
2.
4 – 2 =
2
1
|
3.
4 + 13 =
2
17
|
4.
4 – 0 =
4
1
|
|
5.
17 – 10 =
7
1
|
6.
16 – 2 =
1
14
|
7.
12 – 5 =
7
1
|
8.
13 – 2 =
11
1
|
|
9.
20 + 0 =
20
2
|
10.
10 + 3 =
13
1
|
11.
9 + 0 =
1
9
|
12.
20 + 0 =
20
2
|
|
13.
16 + 0 =
16
2
|
14.
13 – 9 =
4
1
|
15.
15 + 0 =
15
1
|
16.
16 + 4 =
20
2
|
|
17.
11 – 1 =
1
10
|
18.
18 – 9 =
9
1
|
19.
16 – 5 =
1
11
|
20.
4 – 2 =
1
2
|